Agilent 67 GHz Rf signal generator?

How is this frequency range achieved and incorporated in a portable unit.

Thanks.

Here is the link

http://we.home.agilent.com/cgi-bin/b...OUNTRY_CODE=US

It is magnificient!
One thing I did not catch was the price. Is any place I can find hou much these cost without me making an order?

It is also at their website:
hxxp://we.home.agilent.com/cgi-bin/bvpub/agilent/Product/cp_ProductComparison.jsp?NAV_ID=-536895446.0.00&LANGUAGE_CODE=eng&COUNTRY_CODE=US